Crystal Structure and Phase Transition of Some Metallic Halides (III)

Structure Anomaly in α-Ag₂HgI₄

抄録

By a precise measurement by X-ray G–M spectrometer of reflexion intensities in α-Ag₂HgI₄, it was found that the relative intensity of Debye lines cannot be explained by zincblende type structure with disordered metallic atoms as was presumed previously by Ketelaar. The experimental result was explained by assuming the structure anomaly common to that has been proposed for certain other metallic halides (CuI, CuBr etc.) manifesting a similar peculiarity of line intensities. It was suggested that there may be correlation between the structure anomaly and the anomalously high ionic conductivity of this crystal.